Within each lamella of the gill filaments,the blood flows _______________ compared to the water in what is called countercurrent flow.

Name: Within each lamella of the gill filaments,the blood flows _______________ compared to the water in what is called countercurrent flow.
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Question

Quizplus · Accepted Answer

In countercurrent flow, the blood flows in the opposite direction to the water, which maximizes the exchange of oxygen and carbon dioxide across the gill membranes. Therefore, the best choice is D - in the opposite direction.

Within Each Lamella of the Gill Filaments,the Blood Flows _______________